chayiljacquet chayiljacquet

23-07-2018
Mathematics

contestada

Find the angle between two vectors [see attachment]
Please help!!

Find the angle between two vectors see attachment Please help class=

Respuesta :

Аноним Аноним

23-07-2018

Angle = arccos (dot product / product of the magnitues)

dot product = 1*-1 + 9*sqrt7 = 22.812

product of the magnitudes = sqrt(1 + 7) * sqrt(1 + 82) = 25.612

required angle = arccos (22.812/25.612) = 27 degrees to nearest degree

Its choice b.

Answer Link

Otras preguntas

what mechanism did darwin propose to supply the changes needed for evolution

How to make yourself visible when telecommuting

What finally led to us participation in ww1

what can congress do using the judical powers?

What is the highest natural number which divides exactly into 40 and 100

make yes-no questions and negative statements from these "they will be planning" their mothers birthday party this week

4ax+3ay+4bx+3by factor by grouping answer= (_ + b)(_x + _y)

Mary, who is 4 feet tall, casts a shadow 2 feet long. At the same time, a pole casts a shadow 3 feet long. How tall is the pole?

What is the absolute value of -2/3 plz answer

A group of people who share coomon beliefs about how a government should work a democratic or republican or federalist or political party